package day01.arrayutil;

public class ArrayUtil {
    private ArrayUtil(){}
    public static String printArr(int[] arr){
        StringBuilder sb=new StringBuilder();
        sb.append("[");
        for (int i = 0; i < arr.length; i++) {
            if (i==arr.length-1) {
                sb.append(arr[i]);
            }else{
                sb.append(arr[i]).append(", ");
            }
        }
            sb.append("]");
        return sb.toString();
    }
    public static double getAyerage(int[] arr){
        double sum=0;
        for (int i = 0; i < arr.length; i++) {
            sum+=arr[i];
        }
        return sum/arr.length;
    }
}
